434257 has 4 divisors (see below), whose sum is σ = 444400. Its totient is φ = 424116.

The previous prime is 434249. The next prime is 434261. The reversal of 434257 is 752434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 434257 - 2³ = 434249 is a prime.

It is a d-powerful number, because it can be written as 4⁷ + 3⁷ + 2¹⁵ + 4⁹ + 5⁵ + 7⁶ .

It is a Duffinian number.

434257 is a modest number, since divided by 4257 gives 43 as remainder.

It is not an unprimeable number, because it can be changed into a prime (434237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5007 + ... + 5092.

It is an arithmetic number, because the mean of its divisors is an integer number (111100).

2⁴³⁴²⁵⁷ is an apocalyptic number.

It is an amenable number.

434257 is a deficient number, since it is larger than the sum of its proper divisors (10143).

434257 is a wasteful number, since it uses less digits than its factorization.

434257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10142.

The product of its digits is 3360, while the sum is 25.

The square root of 434257 is about 658.9817903402. The cubic root of 434257 is about 75.7266844704.

The spelling of 434257 in words is "four hundred thirty-four thousand, two hundred fifty-seven".